How to set and call a function with different combinations of parameters

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• Python File Tagging System does not retrieve nested dictionaries in dictionary

  I am building a file tagging system using Python. The idea is simple. Given a directory of files (and files within subdirectories), I want to filter them out using a filter input and tag those files with a word or a phrase.

  If I got the following contents in my current directory:

  data/
     budget.xls
     world_building_budget.txt
  a.txt
  b.exe
  hello_world.dat
  world_builder.spec
  

  and I execute the following command in the shell:

  py -3 tag_tool.py -filter=world -tag="World-Building Tool"
  

  My output will be:

  These files were tagged with "World-Building Tool":
  data/ world_building_budget.txt
  hello_world.dat
  world_builder.spec
  

  My current output isn't exactly like this but basically, I am converting all files and files within subdirectories into a single dictionary like this:

  def fs_tree_to_dict(path_):
      file_token = ''
      for root, dirs, files in os.walk(path_):
          tree = {d: fs_tree_to_dict(os.path.join(root, d)) for d in dirs}
          tree.update({f: file_token for f in files})
          return tree
  

  Right now, my dictionary looks like this: key:''.

  In the following function, I am turning the empty values '' into empty lists (to hold my tags):

  def empty_str_to_list(d):
      for k,v in d.items():
          if v == '':
              d[k] = []
          elif isinstance(v, dict):
              empty_str_to_list(v)
  

  When I run my entire code, this is my output:

  hello_world.dat ['World-Building Tool']
  world_builder.spec ['World-Building Tool']
  

  But it does not see data/world_building_budget.txt. This is the full dictionary:

  {'data': {'world_building_budget.txt': []},  
  'a.txt': [],
  'hello_world.dat': [], 
  'b.exe': [], 
  'world_builder.spec': []}
  
  

  This is my full code:

  import os, argparse
  
  
  def fs_tree_to_dict(path_):
      file_token = ''
      for root, dirs, files in os.walk(path_):
          tree = {d: fs_tree_to_dict(os.path.join(root, d)) for d in dirs}
          tree.update({f: file_token for f in files})
          return tree
  
  
  def empty_str_to_list(d):
      for k, v in d.items():
          if v == '':
              d[k] = []
          elif isinstance(v, dict):
              empty_str_to_list(v)
  
  
  parser = argparse.ArgumentParser(description="Just an example", formatter_class=argparse.ArgumentDefaultsHelpFormatter)
  
  parser.add_argument("--filter", action="store", help="keyword to filter files")
  parser.add_argument("--tag", action="store", help="a tag phrase to attach to a file")
  parser.add_argument("--get_tagged", action="store", help="retrieve files matching an existing tag")
  
  args = parser.parse_args()
  
  filter = args.filter
  tag = args.tag
  get_tagged = args.get_tagged
  current_dir = os.getcwd()
  
  files_dict = fs_tree_to_dict(current_dir)
  empty_str_to_list(files_dict)
  
  for k, v in files_dict.items():
      if filter in k:
          if v == []:
              v.append(tag)
              print(k, v)
  
          elif isinstance(v, dict):
              empty_str_to_list(v)
  
      if get_tagged in v:
          print(k, v)
  
• Actaully i am working on a project and in it, it is showing no module name pip_internal plz help me for the same. I am using pycharm(conda interpreter

   File "C:\Users\pjain\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 196, in _run_module_as_main
      return _run_code(code, main_globals, None,
    File "C:\Users\pjain\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 86, in _run_code
      exec(code, run_globals)
    File "C:\Users\pjain\AppData\Local\Programs\Python\Python310\Scripts\pip.exe\__main__.py", line 4, in <module>
    File "C:\Users\pjain\AppData\Local\Programs\Python\Python310\lib\site-packages\pip\_internal\__init__.py", line 4, in <module>
      from pip_internal.utils import _log
  

  I am using pycharm with conda interpreter.

  
• Looping the function if the input is not string

  I'm new to python (first of all) I have a homework to do a function about checking if an item exists in a dictionary or not.

  inventory = {"apple" : 50, "orange" : 50, "pineapple" : 70, "strawberry" : 30}
  
  def check_item():
      x = input("Enter the fruit's name: ")
      if not x.isalpha():
          print("Error! You need to type the name of the fruit")
      elif x in inventory:
          print("Fruit found:", x)
          print("Inventory available:", inventory[x],"KG")
      else:
          print("Fruit not found")
  check_item()
  

  I want the function to loop again only if the input written is not string. I've tried to type return Under print("Error! You need to type the name of the fruit") but didn't work. Help
• suggestions on fulltext search or already existing search algorithms

  Can someone suggest how to solve the below seach problem easily, I mean is there any algorithm, or full text search will be suffice for this?

  There is below classification of items data,

  ItemCategory        ItemCluster     ItemSubCluster      SubCluster  Items
  Vegetable       Root vegetables     Root            WithOutSkin potato, sweet potato, yam
  Vegetable       Root vegetables     Root            WithSkin    onion, garlic, shallot
  Vegetable       Greens          Leafy green     Leaf        lettuce, spinach, silverbeet
  Vegetable       Greens          Cruciferous         Flower      cabbage, cauliflower, Brussels sprouts, broccoli
  Vegetable       Greens          Edible plant stem   Stem        celery, asparagus
  

  The inputs will be some thing like,

  sweet potato, yam Yam, Potato garlik, onion lettuce, spinach, silverbeet lettuce, silverbeet lettuce, silverbeet, spinach

  From the input, I want to get the mapping of the input items those belongs to which ItemCategory, ItemCluster, ItemSubCluster, SubCluster.

  Any help will be much appreciated.
• create string r using string p and q, C++, Data Structures, Strings

  In this question we have given 3 strings and we nee dto count possible number of ways to create string r using string p and q

  
• Writing multithreaded code to generate incremental index

  I want to write a code in following scenario : we want to design an invoice generator.this invoice generator also generates an incremental invoice no .Also note that for some reasons we dont use something like sql Auto Increment here and we want to use C# (I wrote the increment logic). since several users can send requests at a time it means that we dont have to give the same invoice no to them (I used lock for it and I wrote it).

  Now i have written increment logic. and i take care of multiple users requests with lock . and I wrote CRUD for mongodb database.

  My problem is that my increent logic is naive. each time i find maximum and i increment by one which is not scalable. and another problem is that when we delete a record we don't want the invoice no to be repeated and since we find max if the deleted record had the max value then the invoice no would be duplicate and this is something we don't want to have.

  I really don't know how to handle the problem. specially in case of deletion should i store max values in a file or should i change increment logic completely?

  i appreciate any help
• MIPS Assembly - how to calculate squre of n recursively

  I want to write a program that calculates the square of n using recursively based on the equation n^2 = (n - 1)^2 + 2(n - 1) + 1 But I don't know how to write the nonbasecase part. Can anyone help?

  A python program would be

  def square(n) {
      if (n==0):
          return 0
      else:
          return square(n-1) + 2*(n-1) + 1 
  }
  

  Here is what I got so far.

  start:      
          li  $a0, 0x0003     #$a0 contains the number to be squared              
          jal square          # recursive call
          
  square:     
          subi $sp, $sp, 8    # decrement the stack pointer $sp
          sw  $ra, 4($sp)     # push the return address register $ra
          sw  $a0, 0($sp)     # push argument register $a0
          li  $t0, 0x0001     # load $t0 with 1 as part of test for base case
          bne $a0, $t0, nonbasecase   # branch if not the base case
          li $v0, 0x0001      # return base result in $v0
          addi $sp, $sp 8     # recover stack space 
          jr $ra          # jump to return address in $ra
  
  nonbasecase:    
         #not sure how to write when it is not the base case
  
  
          jr $ra          # jump to contents of return address register $ra
  
  
• Nested list in C# with layers

  I am not an expert coder and I have just started learning about Generic data types. What I am trying to code is a List inside of a list inside of a list .

  For example- at the first level - I want numbers each inside of a list

  Layer 1 list1=[1,2,3,4,5,6,7,8,9,10......1000] ,

  At the 2nd layer I'd like list from 1st layer added as an element to a parent list 2 when layer 1 meets certain condition- ex layer 1 reaches max=10

  List2=[List1[0:10],List1[10:20],List1[20:30], .....] ,

  At layer 3, i'd like to repeat the process, all elements of layer 2 get added as an element to a new parent list 3 when layer 2 meets a max condition. list3[0]=[list2[0:10],list2[10:20],list2[20:30]..... and so on.

  Only the first layer would have integer values, the successive layer would be a wrapping of it's the previous layer. How can I code this in C#?

  Thanks!
• Why println is being executed in this recursive piece of code?

  In this code arrLength starts with four and then keeps being decremented until it reaches zero. At the moment it reaches zero it should not execute what is inside the if block anymore. But what is happening is that when it reaches zero it still executes the println line. Not understanding how that println line is being executed since that line is inside the if block and nothing inside the if block should execute when arrLength gets to zero. At the end it prints 5, 6, 2, 1 while in my understanding it should print nothing never executing the println line.

  class ArrayElements{
   
      public void printElements(int arr[], int arrLength){
          if(arrLength != 0){
              arrLength--;
              printElements(arr, arrLength);
              System.out.println(arr[arrLength]);
          }
      }
  }
  public class Main {
   
      public static void main(String[] args) {
          int arr[] = {5,6,2,1};
          int arrLength = arr.length;
   
          ArrayElements mv = new ArrayElements();
          mv.printElements(arr, arrLength );
      }
  }